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A fire still burns Wednesday, March 13, 2013, after a tugboat and barge hit a gas pipeline Tuesday evening in Perot Bay in Lafourche Parish, La., about 30 miles south of New Orleans. Coast Guard Cmdr. Russ Bowen said it appears the barge is intact and none of its cargo of crude oil was leaking, though there were patches of oily sheen in the area. The Coast Guard was investigating whether those sheenes were related to the accident. (AP Photo/Gerald Herbert)

A fire still burns after a tugboat and barge hit a gas pipeline yesterday evening in Perot Bay in Lafourche Parish, La., Wednesday, March 13, 2013. (AP Photo/Gerald Herbert)

A fire still burns after a tugboat and barge hit a gas pipeline yesterday evening in Perot Bay in Lafourche Parish, La., Wednesday, March 13, 2013. (AP Photo/Gerald Herbert)

This US Coast Guard handout image shows a natural gas pipeline burning after a collision with the tugboat Shanon E. Setton near Bayou Perot 30 miles south of New Orleans, Louisiana March 13, 2012. The tug, pushing a barge loaded with crude oil struck a natural gas line, causing the fire, injuring at least two persons. The Coast Guard is working with federal, state and local agencies in response to this incident to ensure the safety of responders and contain and clean up any oil that is leaking. AFP PHOTO / US Coast Guard Air Station New Orleans

A fire still burns after a tugboat and barge hit a gas pipeline yesterday evening in Perot Bay in Lafourche Parish, La., Wednesday, March 13, 2013. (AP Photo/Gerald Herbert)

A fire still burns after a tugboat and barge hit a gas pipeline yesterday evening in Perot Bay in Lafourche Parish, La., Wednesday, March 13, 2013. (AP Photo/Gerald Herbert)

A seagull, top center, is seen flying in front of a fire that still burns after a tugboat and barge hit a gas pipeline yesterday evening in Perot Bay in Lafourche Parish, La., Wednesday, March 13, 2013. (AP Photo/Gerald Herbert)

This image provided by the U.S. Coast Guard shows a pipeline burning after a collision near Bayou Perot 30 miles south of New Orleans, Tuesday March 12, 2012. (AP Photo/US Coast Guard, Petty Officer 3rd Class Carlos Vega)

Photos: Large fire after barge strikes gas line in Louisiana

A natural gas pipeline is burning after a collision with the tugboat Shanon E. Setton near Bayou Perot 30 miles south of New Orleans, Louisiana March 13, 2012. The tug, pushing a barge loaded with crude oil struck a natural gas line, causing the fire, injuring at least two persons. The Coast Guard is working with federal, state and local agencies in response to this incident to ensure the safety of responders and contain and clean up any oil that is leaking.